Bob, you might have already seen my comments on radiators, but I solved
this problem to death. My TR3 now runs at 110 indicated water temp (yes
that's Fahrenheit) with no fan during summer races if I leave the
thermostat bypassed (not a great idea) with a half inch hose.=20
I did buy one of those lovely looking aluminum radiators, and promptly
broke it by pushing down on the radiator cap to remove it. Who'da thunk
that would crack the upper collector? Then I went to a very good local
radiator shop and said--fill the front open with as much radiator as =
you
can, keeping the original mounting points. They did exactly that, =
adding
a remote fill/overflow tank that bolts nicely to the left side wheel
well. Problem solved, total bill--$280 bucks.=20
-----Original Message-----
From: Bob Kramer [mailto:rgk@flash.net]
Sent: Tuesday, July 07, 1998 6:03 PM
To: Alexander Joseph H; 'Girsch Brian'
Cc: 'Amici Triumphi'
Subject: Re: Coolant
Joe,=20
I have the same problem. I've been running very high (to me anyway)
temps at 225-230 degrees, filling the bottle almost full in a 15-20
minute session. I am boiling off a little coolant each session and the
TR3 runs a 4 LB cap. I did a pressure test and followed it up with a
gas test (checking for CO2 in the air above the coolant) and came up
without a problem. My engine cools down to 210 when it's not floored,
but what fun is that. I'm looking into an aluminum radiator, which they
say drops the temp 20 degrees all by itself. I'd like to solve the
underlying problem, then buy the $500 radiator. It's been staying right
around 100 degrees daily here in TX, and we race again 8/1/98. I'll be
playing some more with timing and mixture. Fingers crossed!
Bob Kramer, Austin TX
Hill Country Triumph Club
TR6's, TR250's, TR3A vintage race
rgk@flash.net
I am pushing coolant out to the overflow bottle and it does not return
to
the radiator on cool down.
Not boiling over, nor do I have a serious loss of coolant other than
some
splash. The bottle is usually =BD to =BE full at the end of a session.
Do I need a new cap or is this evidence of a more insidious problem?
Brian,
please order me a new cap, in any case. Perhaps I should bring down for
a
pressure test?
What # pressure cap do the FOT run? Ours is currently a 7# cap.
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